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Finding the Fourth Proportional to 339,331, 468,296.22 and 188,437.72

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Solution

The fourth proportional to 339,331, 468,296.22 and 188,437.72 is: 260,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,331 : 468,296.22 = 188,437.72 : x
  2. Step 2: Convert to fraction form
    339,331/468,296.22 = 188,437.72/x
  3. Step 3: Cross multiply
    339,331x = 468,296.22 × 188,437.72
  4. Step 4: Simplify right side
    339,331x = 88,244,671,981.42
  5. Step 5: Solve for x
    x = 88,244,671,981.42/339,331
  6. Step 6: Final answer
    x = 260,054.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.